package com.demo.springcloud.filter;

import lombok.extern.slf4j.Slf4j;
import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.Ordered;
import org.springframework.http.HttpStatus;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;

import java.util.Date;

/**
 * @author hxg
 * @version 1.0
 * @date 2022/1/4 16:42
 */
@Component
@Slf4j
public class myGlobalFilter implements GlobalFilter, Ordered {
    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
        log.info("********globalFilter Start   "+new Date());
        String username = exchange.getRequest().getQueryParams().getFirst("username");
        if (username != null) {
            return chain.filter(exchange);
        }
        log.info("********用户名为null，非法用户");
        exchange.getResponse().setStatusCode(HttpStatus.NOT_ACCEPTABLE);
        return exchange.getResponse().setComplete();
    }

    @Override
    public int getOrder() {
        return 0;
    }
}
